The plain and simple start screen. Basic and No menu are preconfigured grids; Samples is a folder containing other grids.

Each teacher could create a folder so any grid is quickly ready for use.

This is the Basic grid, a simple 1-100 square with the Fill mode set at Grid.

Click on the 3 and see what happens, then click the 4.

   

This should be the result. You can click any number from 2 to 10 and see the multiples – click again to turn them off. Even this simple example throws up some interesting results: 12, 24, 36 . . .

Pop up the menu panel at the lower left of the screen and widen the grid.

Not only the tables for 3 and 4, but 12 as well.

You could use the menu panel to switch the Fill mode to Manual and colour in your own numbers.

What happens if you make the increment 10 instead of 1? Or 0.1, or even 0.001?

You can predefine many of the features of Century Box from the Configurations Editor. From the title screen press CONTROL + F2.

This is the setup for the Basic grid. Right-click a folder to create a new folder or configuration.

You can right-click a folder or file and choose to hide it (or delete it) if the front screen is getting too crowded.

Left-click any pink panel to change its setting. Values can be left- or right-clicked to change up or down, or just type in a number.